diff options
Diffstat (limited to 'arch/arm/mach-exynos/common.c')
| -rw-r--r-- | arch/arm/mach-exynos/common.c | 418 |
1 files changed, 0 insertions, 418 deletions
diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c deleted file mode 100644 index f18be40e5b21..000000000000 --- a/arch/arm/mach-exynos/common.c +++ /dev/null @@ -1,418 +0,0 @@ -/* - * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd. - * http://www.samsung.com - * - * Common Codes for EXYNOS - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/kernel.h> -#include <linux/bitops.h> -#include <linux/interrupt.h> -#include <linux/irq.h> -#include <linux/irqchip.h> -#include <linux/io.h> -#include <linux/device.h> -#include <linux/gpio.h> -#include <clocksource/samsung_pwm.h> -#include <linux/sched.h> -#include <linux/serial_core.h> -#include <linux/of.h> -#include <linux/of_fdt.h> -#include <linux/of_irq.h> -#include <linux/pm_domain.h> -#include <linux/export.h> -#include <linux/irqdomain.h> -#include <linux/of_address.h> -#include <linux/irqchip/arm-gic.h> -#include <linux/irqchip/chained_irq.h> -#include <linux/platform_device.h> - -#include <asm/proc-fns.h> -#include <asm/exception.h> -#include <asm/hardware/cache-l2x0.h> -#include <asm/mach/map.h> -#include <asm/mach/irq.h> -#include <asm/cacheflush.h> - -#include <plat/cpu.h> -#include <plat/pm.h> -#include <plat/regs-serial.h> - -#include "common.h" -#include "regs-pmu.h" - -#define L2_AUX_VAL 0x7C470001 -#define L2_AUX_MASK 0xC200ffff - -static const char name_exynos4210[] = "EXYNOS4210"; -static const char name_exynos4212[] = "EXYNOS4212"; -static const char name_exynos4412[] = "EXYNOS4412"; -static const char name_exynos5250[] = "EXYNOS5250"; -static const char name_exynos5420[] = "EXYNOS5420"; -static const char name_exynos5440[] = "EXYNOS5440"; - -static void exynos4_map_io(void); -static void exynos5_map_io(void); -static int exynos_init(void); - -static struct cpu_table cpu_ids[] __initdata = { - { - .idcode = EXYNOS4210_CPU_ID, - .idmask = EXYNOS4_CPU_MASK, - .map_io = exynos4_map_io, - .init = exynos_init, - .name = name_exynos4210, - }, { - .idcode = EXYNOS4212_CPU_ID, - .idmask = EXYNOS4_CPU_MASK, - .map_io = exynos4_map_io, - .init = exynos_init, - .name = name_exynos4212, - }, { - .idcode = EXYNOS4412_CPU_ID, - .idmask = EXYNOS4_CPU_MASK, - .map_io = exynos4_map_io, - .init = exynos_init, - .name = name_exynos4412, - }, { - .idcode = EXYNOS5250_SOC_ID, - .idmask = EXYNOS5_SOC_MASK, - .map_io = exynos5_map_io, - .init = exynos_init, - .name = name_exynos5250, - }, { - .idcode = EXYNOS5420_SOC_ID, - .idmask = EXYNOS5_SOC_MASK, - .map_io = exynos5_map_io, - .init = exynos_init, - .name = name_exynos5420, - }, { - .idcode = EXYNOS5440_SOC_ID, - .idmask = EXYNOS5_SOC_MASK, - .init = exynos_init, - .name = name_exynos5440, - }, -}; - -/* Initial IO mappings */ - -static struct map_desc exynos4_iodesc[] __initdata = { - { - .virtual = (unsigned long)S3C_VA_SYS, - .pfn = __phys_to_pfn(EXYNOS4_PA_SYSCON), - .length = SZ_64K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S3C_VA_TIMER, - .pfn = __phys_to_pfn(EXYNOS4_PA_TIMER), - .length = SZ_16K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S3C_VA_WATCHDOG, - .pfn = __phys_to_pfn(EXYNOS4_PA_WATCHDOG), - .length = SZ_4K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S5P_VA_SROMC, - .pfn = __phys_to_pfn(EXYNOS4_PA_SROMC), - .length = SZ_4K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S5P_VA_SYSTIMER, - .pfn = __phys_to_pfn(EXYNOS4_PA_SYSTIMER), - .length = SZ_4K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S5P_VA_PMU, - .pfn = __phys_to_pfn(EXYNOS4_PA_PMU), - .length = SZ_64K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S5P_VA_COMBINER_BASE, - .pfn = __phys_to_pfn(EXYNOS4_PA_COMBINER), - .length = SZ_4K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S5P_VA_GIC_CPU, - .pfn = __phys_to_pfn(EXYNOS4_PA_GIC_CPU), - .length = SZ_64K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S5P_VA_GIC_DIST, - .pfn = __phys_to_pfn(EXYNOS4_PA_GIC_DIST), - .length = SZ_64K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S5P_VA_CMU, - .pfn = __phys_to_pfn(EXYNOS4_PA_CMU), - .length = SZ_128K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S5P_VA_COREPERI_BASE, - .pfn = __phys_to_pfn(EXYNOS4_PA_COREPERI), - .length = SZ_8K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S5P_VA_L2CC, - .pfn = __phys_to_pfn(EXYNOS4_PA_L2CC), - .length = SZ_4K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S5P_VA_DMC0, - .pfn = __phys_to_pfn(EXYNOS4_PA_DMC0), - .length = SZ_64K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S5P_VA_DMC1, - .pfn = __phys_to_pfn(EXYNOS4_PA_DMC1), - .length = SZ_64K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S3C_VA_USB_HSPHY, - .pfn = __phys_to_pfn(EXYNOS4_PA_HSPHY), - .length = SZ_4K, - .type = MT_DEVICE, - }, -}; - -static struct map_desc exynos4_iodesc0[] __initdata = { - { - .virtual = (unsigned long)S5P_VA_SYSRAM, - .pfn = __phys_to_pfn(EXYNOS4_PA_SYSRAM0), - .length = SZ_4K, - .type = MT_DEVICE, - }, -}; - -static struct map_desc exynos4_iodesc1[] __initdata = { - { - .virtual = (unsigned long)S5P_VA_SYSRAM, - .pfn = __phys_to_pfn(EXYNOS4_PA_SYSRAM1), - .length = SZ_4K, - .type = MT_DEVICE, - }, -}; - -static struct map_desc exynos4210_iodesc[] __initdata = { - { - .virtual = (unsigned long)S5P_VA_SYSRAM_NS, - .pfn = __phys_to_pfn(EXYNOS4210_PA_SYSRAM_NS), - .length = SZ_4K, - .type = MT_DEVICE, - }, -}; - -static struct map_desc exynos4x12_iodesc[] __initdata = { - { - .virtual = (unsigned long)S5P_VA_SYSRAM_NS, - .pfn = __phys_to_pfn(EXYNOS4x12_PA_SYSRAM_NS), - .length = SZ_4K, - .type = MT_DEVICE, - }, -}; - -static struct map_desc exynos5250_iodesc[] __initdata = { - { - .virtual = (unsigned long)S5P_VA_SYSRAM_NS, - .pfn = __phys_to_pfn(EXYNOS5250_PA_SYSRAM_NS), - .length = SZ_4K, - .type = MT_DEVICE, - }, -}; - -static struct map_desc exynos5_iodesc[] __initdata = { - { - .virtual = (unsigned long)S3C_VA_SYS, - .pfn = __phys_to_pfn(EXYNOS5_PA_SYSCON), - .length = SZ_64K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S3C_VA_TIMER, - .pfn = __phys_to_pfn(EXYNOS5_PA_TIMER), - .length = SZ_16K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S3C_VA_WATCHDOG, - .pfn = __phys_to_pfn(EXYNOS5_PA_WATCHDOG), - .length = SZ_4K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S5P_VA_SROMC, - .pfn = __phys_to_pfn(EXYNOS5_PA_SROMC), - .length = SZ_4K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S5P_VA_SYSRAM, - .pfn = __phys_to_pfn(EXYNOS5_PA_SYSRAM), - .length = SZ_4K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S5P_VA_CMU, - .pfn = __phys_to_pfn(EXYNOS5_PA_CMU), - .length = 144 * SZ_1K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S5P_VA_PMU, - .pfn = __phys_to_pfn(EXYNOS5_PA_PMU), - .length = SZ_64K, - .type = MT_DEVICE, - }, -}; - -void exynos4_restart(enum reboot_mode mode, const char *cmd) -{ - __raw_writel(0x1, S5P_SWRESET); -} - -void exynos5_restart(enum reboot_mode mode, const char *cmd) -{ - struct device_node *np; - u32 val; - void __iomem *addr; - - val = 0x1; - addr = EXYNOS_SWRESET; - - if (of_machine_is_compatible("samsung,exynos5440")) { - u32 status; - np = of_find_compatible_node(NULL, NULL, "samsung,exynos5440-clock"); - - addr = of_iomap(np, 0) + 0xbc; - status = __raw_readl(addr); - - addr = of_iomap(np, 0) + 0xcc; - val = __raw_readl(addr); - - val = (val & 0xffff0000) | (status & 0xffff); - } - - __raw_writel(val, addr); -} - -static struct platform_device exynos_cpuidle = { - .name = "exynos_cpuidle", - .id = -1, -}; - -void __init exynos_cpuidle_init(void) -{ - platform_device_register(&exynos_cpuidle); -} - -void __init exynos_cpufreq_init(void) -{ - platform_device_register_simple("exynos-cpufreq", -1, NULL, 0); -} - -void __init exynos_init_late(void) -{ - if (of_machine_is_compatible("samsung,exynos5440")) - /* to be supported later */ - return; - - pm_genpd_poweroff_unused(); -} - -static int __init exynos_fdt_map_chipid(unsigned long node, const char *uname, - int depth, void *data) -{ - struct map_desc iodesc; - __be32 *reg; - unsigned long len; - - if (!of_flat_dt_is_compatible(node, "samsung,exynos4210-chipid") && - !of_flat_dt_is_compatible(node, "samsung,exynos5440-clock")) - return 0; - - reg = of_get_flat_dt_prop(node, "reg", &len); - if (reg == NULL || len != (sizeof(unsigned long) * 2)) - return 0; - - iodesc.pfn = __phys_to_pfn(be32_to_cpu(reg[0])); - iodesc.length = be32_to_cpu(reg[1]) - 1; - iodesc.virtual = (unsigned long)S5P_VA_CHIPID; - iodesc.type = MT_DEVICE; - iotable_init(&iodesc, 1); - return 1; -} - -/* - * exynos_map_io - * - * register the standard cpu IO areas - */ - -void __init exynos_init_io(void) -{ - debug_ll_io_init(); - - of_scan_flat_dt(exynos_fdt_map_chipid, NULL); - - /* detect cpu id and rev. */ - s5p_init_cpu(S5P_VA_CHIPID); - - s3c_init_cpu(samsung_cpu_id, cpu_ids, ARRAY_SIZE(cpu_ids)); -} - -static void __init exynos4_map_io(void) -{ - iotable_init(exynos4_iodesc, ARRAY_SIZE(exynos4_iodesc)); - - if (soc_is_exynos4210() && samsung_rev() == EXYNOS4210_REV_0) - iotable_init(exynos4_iodesc0, ARRAY_SIZE(exynos4_iodesc0)); - else - iotable_init(exynos4_iodesc1, ARRAY_SIZE(exynos4_iodesc1)); - - if (soc_is_exynos4210()) - iotable_init(exynos4210_iodesc, ARRAY_SIZE(exynos4210_iodesc)); - if (soc_is_exynos4212() || soc_is_exynos4412()) - iotable_init(exynos4x12_iodesc, ARRAY_SIZE(exynos4x12_iodesc)); -} - -static void __init exynos5_map_io(void) -{ - iotable_init(exynos5_iodesc, ARRAY_SIZE(exynos5_iodesc)); - - if (soc_is_exynos5250()) - iotable_init(exynos5250_iodesc, ARRAY_SIZE(exynos5250_iodesc)); -} - -struct bus_type exynos_subsys = { - .name = "exynos-core", - .dev_name = "exynos-core", -}; - -static struct device exynos4_dev = { - .bus = &exynos_subsys, -}; - -static int __init exynos_core_init(void) -{ - return subsys_system_register(&exynos_subsys, NULL); -} -core_initcall(exynos_core_init); - -static int __init exynos4_l2x0_cache_init(void) -{ - int ret; - - ret = l2x0_of_init(L2_AUX_VAL, L2_AUX_MASK); - if (ret) - return ret; - - l2x0_regs_phys = virt_to_phys(&l2x0_saved_regs); - clean_dcache_area(&l2x0_regs_phys, sizeof(unsigned long)); - return 0; -} -early_initcall(exynos4_l2x0_cache_init); - -static int __init exynos_init(void) -{ - printk(KERN_INFO "EXYNOS: Initializing architecture\n"); - - return device_register(&exynos4_dev); -} |